布瑞姆斯通公司是一家美国初创企业，开发了替代性水泥生产技术，用硅酸盐岩石取代传统石灰石作为原料1。该工艺可将温室气体排放量减少约60%1，而传统水泥生产工艺本身贡献了全球二氧化碳污染的约8%1。
该公司的技术突破在于能够从同一种岩石在单一炼厂中提取多种关键矿物1，这些材料代表着价值2.4万亿美元的全球市场1。2023年，该公司的波特兰水泥制造工艺获得第三方行业认证1。布瑞姆斯通已与亚马逊和美国铝业公司（世纪铝业）签订商业供应协议1。
公司计划在内华达州雷诺建设商业示范设施，预计2028年投入运营1。根据规划，该设施初期将专注于生产水泥、辅助材料和氧化铝1。特朗普政府撤销了该项目价值1.89亿美元的补助金1。布瑞姆斯通迄今尚未在商业规模上生产任何产品1。
Brimstone, a U.S. startup, has developed an innovative manufacturing process that substitutes silicate rock for conventional limestone in cement production, achieving approximately 60% reduction in greenhouse gas emissions compared to traditional methods.1 The company has expanded its technological ambitions beyond cement alone, claiming it can extract aluminum, steel, titanium, and other critical minerals from the same rock source within a single refinery facility, representing a global market valued at $2.4 trillion.1
The company's Portland cement manufacturing process received third-party industry certification in 2023.1 Brimstone has already secured commercial supply agreements with major customers including Amazon and Century Aluminum.1 The company plans to begin operations at its demonstration facility in Reno, Nevada in 2028, initially producing cement, supplementary materials, and aluminum oxide.1 However, the Trump administration rescinded $189 million in federal subsidies previously allocated to support the commercial demonstration project in Reno.1
CEO Cody Finke has characterized Brimstone as "a company that could create an industrial revolution for a generation."1 Notably, the company has not yet produced any products at commercial scale.1 This development comes against the backdrop of cement production's significant environmental impact—traditional cement manufacturing accounts for approximately 8% of global carbon dioxide emissions.1
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